139859958 has 16 divisors (see below), whose sum is σ = 319680000. Its totient is φ = 39959976.

The previous prime is 139859957. The next prime is 139859999. The reversal of 139859958 is 859958931.

It is a junction number, because it is equal to n+sod(n) for n = 139859898 and 139859907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139859957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1664958 + ... + 1665041.

It is an arithmetic number, because the mean of its divisors is an integer number (19980000).

Almost surely, 2^139859958 is an apocalyptic number.

139859958 is an abundant number, since it is smaller than the sum of its proper divisors (179820042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139859958 is a wasteful number, since it uses less digits than its factorization.

139859958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3330011.

The product of its digits is 3499200, while the sum is 57.

The square root of 139859958 is about 11826.2402309441. The cubic root of 139859958 is about 519.0762173623.

The spelling of 139859958 in words is "one hundred thirty-nine million, eight hundred fifty-nine thousand, nine hundred fifty-eight".